Charging system for storage cells or batteries.



PATENTED NOV. 20, 1906,.

I. DE 8. FREUND. CHARGING SYSTEM FOR STORAGE CELLS 0R BATTERIES.

APPLICATION FILED JUNE 10. 1905.

UNITED STAT JACOB DE S. FREUN 1), OF EDS '10 THE UNION SWITUI. AN oi:SYLVANIA, A UORPORA'HUN (l1? @HAFlGlNG SYS'i'EFl/l BATTERIES.

Specification of Letters Patent.

Patented Nov. 20, 190$v Application filed June 10,1905. Serial No,264.730.

To all whomit ll'L/Ij/ o/warn:

Be it known that l, .Lxcon on S. Fnnunn, a citizen of the United States,residing at Edgewood Park, in the county of Allegheny ind State ofPennsylvania. have invented coil in new and nscl'ul wlniprm'ements inCharging Systems for Storage (oils or Batteries, oi which the followingis a specification.

My invention relates to charging systems for storage cells or batteries,and particularly to an automatic switch for use in such systemsespecially where the cells or batteries in the system are inmultiple-es, tor example, in automatic block railway signaling systemswhere the cells or batteries are. cnipl yed the source at power forthcya ens motors, track-circuits, etc, used signaling system. The cellsor hatlerie. genera are y arranged in sets or pairs, one set-or pairdischarging to provide power to?) said motors, track-circuits, elc,while thc other set or pair is being recharged. The number of cells orbatteries in a set may be any dei in l sired. Obviously, therefore, whenone of cells or batteries has discharged itscll' in no nishing thenecessary power it litroines essential to include these cells orbatteries in the charging circuit, so that they may again be recharged,and. that while they are being so recharged to include the other set ofcells or batteries in the supply-circuit, thereby nniintaining acontinuity of mirrcnt-supply and preventing all possibility ofinterruption thereof.

i will describe a charging-circuit for storage ceils or batteriesembodying nay invcntion and then point out the novel features thereof ina claim.

in the accompanying drawings, Figure i is a diagrannnatical view ot' asystem for clmig ing storage-cells embodying my inyention. i haveillustral ed my in vcntion in connect ion with a railway signalingsystem. l ig. 2 is an elevation of an automatic swilelno;wrating deviceembodied in my invention. 3 is a plan yicwthereof. Fig. 4 is adiagramniat-ieal view showing' a manner oi' arranging the automaticswitch between a pair 5 cells or batteries.

Similar rel'creni-e characters designate corresponding parts in all theiignres oi the drawings.

in illustrating my invention in connzwticn.

Fig.

'rna conic ruin a ditl'erent sourccf with a railway signaling system, asin Fig. 1, i do so for the purpose of showing a practical application inone form, and it'must be understood that i. do not limit myself to thisappiieazion, my invention covers and is capable of a wide range. ofadaptation and may he sd'vantageously used under many coi'iditions forcharging storage cells.

lliclerring now to Fig. 1, A designates a portion of a railway dividedby insulaticns a into a number of track-sections vB C D, (to Adesignates a third rail. One or both of the trend or service rails mayconstitutethe relnrn to the source of power, which in this in .nre is inthe 'l'orm of a direct gcn crater i. which-is employed for supplyingcurrent to -,ncpel the niotorcars and also for charging the storage.cells or batteries, although, as is well understood, such current i'orcharging the si.1innge batteries or cells S S" S at, designs tc motorscomprised in the mechanism l'or operating the signal devices of therailwa B B, (Q3047 designate Batteries or sets of such cells orsupplying the power for said motors and for other electron]agneticdevices and circuits (or sed in the signaling sys tem. The sets i3 llii, &c., are those which are being discharged through a supply-circuitto the motors or any other mechanism or eirc n which they maybeconnected as a ource of rower and B B B &c., are those which are cut outof the supplybeing charged. The cells or B etc, or sets of cells orbatteries .sngcd in pairs, B- B being one pair, 5 B another pair, and soon.- As she '11, there are two feed or line wires 4 5 extending from onepole of the generator, the return-line being the rail or rails of therailw tine feed-wire contains a cell or ha i. or set of cells orbatteries of each pan of cells or batteries. A switch 2, located at thegenerator-station,-for engaging either iced-ire shown as being thrown tothe position to engage a contact 3 in the feedwire 4.

Arranged ii'fseries in the line-wire 4 are a plurality of magnets orsolenoid-coils, which form one side of automatic switches. Similarmagnet or solenoid coils are arranged in series in the feed-wire 5 andform the oppoor batierie i5 circuit and batteries i site sides of theautomatic switches. An eutomntic switch comprising two magnet orsolenoid coils and suitable contacts is placed at each pair or sets ol"cells-es, for example, between the sets B B and B B, etc. (See Figs. 1end 4..)

Q" ztilil. C designate the magnet-coils of one switch, (.7 C themagnet-coils of another switch C C the magnet-coils of 'till anotherswitch. and so on. The coils (f C oi the several switches are, as shown,being energized by the cliarging-current, and when so energized they notto close and keep closed the contiicts .r y of the several switches,Figs. 1 sud i, so that the storage cells or batteries B J) B, &c., maybe included in the supplycircuit. Coi'iversely, when the coils C C C,etc, are energized the contacts w of the several switches are closed, sothat the storage cells or batteries B B, &c., may be included in thesupply-circuit. The closing of the one or the other of the sets ofcontacts x 3/ w 2 just described includes the cells or. batteries in.one charging line in. the supply-circuit and cuts out l'rom thesimply-circuit the opposite cells or batteries in the other line-wireand which. are about to be charged. This is clenrlv shown, in Figs. 1.and i.

"I he switch For eii'ecting the eutenmtic n t wn one cell or sci ofcells onto the et of cells is more clearly shown. 1-. it comprises, asstated, solenoids end suitable means opernied by them for iilll'hlililllCttll'y opmiing end closing contacts included in the supplpcircuit. Thecores of the pair of the magnet-coils or solenoids are suitablyconnccted with leier m, pivoted intermediate its ends. The lever m hassecured. to its outer exire niiies the puns ol movable conlztcis :r 7und. 1/. which are properly lliSlildlEll therelroni end from each oiherand which engage ith siniionzir v (-ontncis o p illtl c i], alsosuitably insuhited.

it will be seen l'rom Fig 2 tlml when one nmgnctcoil l :1 switch isenerg i ieil the lever in is lllil'illl on. iis pivot to close one setol contacts l'or exznnplem 1 and o p -.-in.d open the olher set.(.onversel v, when the other 1nn u1ei-e ii is energized the open set ol"con.- incts in .2 and c are closed and the closed set .r 1 nnd o p (areopened hiel'erringnow to l igs. l and 4', wlnit I herein term lhe"supply-circuit includes both pziirsol' mionblei-ontncisw 1/ :indw znndthe elci-troni.-.gnciiidevice or circuits lo be upplied with currentl'roni the storage bail;- leries. This ('li'i'llll in the exzimplo sh wnin these ligures um b irziced :is l'ollows: wire l l l l l l l 20, Wire21, (common to movable contacts w and 1B,) wire 22, and wire 23,(common. to movable contacts 1/ end 2.) This circuit, as shown, alsoincludes :i motor device S, etc, of the railway signal mechnnism. Thestutionery contacts 0 1/ are included in n, circuit leading from thesets of cells B B, &c., and the stationary contacts 1; d are inclinledin t1, circuit leading from the sets of cells B" B, &c. Thus it will beseen. that when the switch 2 is in the position shown in Fig. ithebatteries B &c., will be clntrged and the megnet-coils U C, etc,energized to mov their levers m to include the cells or batteries B,&c., in the supply-circuits, and when the switch 2 is ome to its otherposition. (to engage line-Wire 5) the cells or bnttcries B B, &c., willbe charged mid the magnet-coils in that line energized to move theirlevers m, thereby cutting the cells or batteries B B out of the su1' pl'*-circuit and the cells or hotteries B B, See, into the supply-circuit.

The operation of my invention 11lit be no.- derstood from the foregoing;but 1. nmy here add that the throwing of it switch at thegenerating-station in either direction will energize the magnet-coils inthat particular line, the path of current being from the generator (I orother source through the switch and through each set ol cells in thatline ItIHl the imignet-coils on one side 01'' the switch devices nndthen to the return line lmck to the generator G.

Having thus described my invention, whu t I claim, and desire to secureby Letters lintent, follows:

in combinution with it chzirging-generntor, two lcmhwires extendingtherefrom storage cells or batteries included in each l'eed.wire, andarranged in. pairs, nmgnet-i-oils in each iced-wire and arranged inpairs, one pair ol magnet-coils being provided for each pair ol' storagecells or batteries, :1. pivoted lever for (JZlCll piiir ol' magnet-coilsend nlteri'uitely moved on its pivot by said 111:1.gnet-coils, contucisopened. and closed by the movement ol Uill'ill lever, and :isupply-circuit for each pair of storage cells orbzitteries which iscontrolled by the movements oi" the pivoted lever of the imignet coilsprovided lor the pair ol storage cells or batteries.

in testimony whereof I hnve signed my name to this s )GCl'llCtLtiOll inthe presence of two subscriber witnesses.

JACOB DID S. l lilllTNl).

Witnesses:

l)ANIEli J. hiCCAR'IflIY, \VALTER Diensom

